According to the present invention there is provided a stable, fluid, tubing mascara composition in the form of an oil-in-water emulsion comprising: (i) at least 9% by weight of the total composition of one or more film-forming aliphatic polyurethane resins; and (ii) one or more waxes; wherein the ratio of total aliphatic polyurethane resin concentration to total wax concentration is between 0.70 and 0.92. The present invention also provides an assembly or kit for packaging and applying a mascara composition for coating eyelashes, comprising: (i) a device for packaging the mascara composition as defined above; and (ii) an applicator for the composition. The present invention also provides a method using the assembly or kit as defined above for building up layers of the mascara composition onto the eyelashes comprising: (i) applying the mascara composition to the applicator; (ii) moving the applicator so that the mascara composition is applied to the eyelashes from the roots of the eyelashes to the tips of the eyelashes; (iii) optionally repeating (ii) in order to apply an even coat of the mascara composition onto the eyelashes; and (iv) optionally repeating steps (i) to (iii), wherein subsequent reapplications of the mascara compositions are carried out whilst the mascara composition present on the eyelashes has not yet dried.La présente invention concerne une composition de mascara gainant fluide stable sous la forme d'une émulsion huile dans l'eau comprenant : (I) au moins 9 % en poids de la composition totale d'une ou de plusieurs résines polyuréthanes aliphatiques filmogènes ; et (ii) une ou plusieurs cires ; le rapport entre la concentration totale en résine polyuréthane aliphatique et la concentration totale en cire étant compris entre 0,70 et 0,92. La présente invention concerne également un ensemble ou un kit d'emballage et d'application d'une composition de mascara pour recouvrir les cils, comprenant : (i) un dispositif pour emballer la composition de masca